Definition

1. Noun:
   • The excrement of sea birds, used as fertilizer: Guano refers specifically to the accumulated droppings of seabirds, which is rich in nitrogen, phosphate, and potassium, making it a valuable natural fertilizer.

Examples of Usage

• Noun:
  • The island's cliffs were covered in guano from the large bird colonies.
  • Farmers in the 19th century highly valued guano for enriching their soil.

Advanced Usage

• "Guano deposits": Refers to large, naturally accumulated layers of bird excrement, often mined historically.
  • The mining of guano deposits was a major industry on some Pacific islands.

Variants and Related Words

• Guanoed (verb, past participle): Describes land that has been fertilized with guano.
  • The guanoed fields produced a much larger crop.

Synonyms

• Manure: Animal dung used for fertilizing land. (Note: "manure" is a broader term, while "guano" is specific to seabirds and bats.)
• Droppings: The excrement of animals or birds.

Noun

1. the excrement of sea birds; used as fertilizer